Jessica Mauboy thrills Sydney crowd

AAP

Pop princess Jessica Mauboy brought down the house at the Sydney leg of her national tour with a powerful rendition of Whitney Houston's classic, I Have Nothing.

The 24-year-old singer had the crowd dancing in their seats, cheering and yelling her name, and those in the mosh pit jumping and clapping, by the end of the concert on Friday night.

The performance at Sydney's The Star was one of 27 in the energetic pop singer's To The End Of The Earth tour, which kicked off in Adelaide on November 7.

Mauboy opened the show wearing a silver jacket and playsuit combo, busting out her bubbly hit Up/Down before getting the crowed going with older favourites, Burn , Been Waiting and Let Me Be Me.

But it wasn't until after the second interval when the star stunned the crowd with a soulful rendition of Houston's classic, I Have Nothing, that sealed her show.

Mauboy's powerful vocal range was in stunning display in the tribute ballad and an honourable complement to the late singer.

That was not the only rendition on the night.

Mauboy interspersed her own tunes and tracks from the feature film The Sapphires with a cover of Cyndi Lauper's Time After Time which had everyone singing along, and The Miracles's Who's Loving You.

With Mauboy's powerful vocals given plenty of opportunities to shine, it managed to outdo a lacklustre band which failed to live up to the same energy and vibrancy of the singer.

There were at least five fabulous costume changes, from silver space-suit-like numbers to glittery, sparkly dresses, all made in such speed at least one audience member nearby remarked at how bewildered they were that Mauboy managed it.

Others shrieked their appreciation: "We love you, Jess!"

Even two stoic Asian businessmen, still in their suits and who appeared lost amid a row of mostly pre-teen girls, were bopping their heads in approval by the end of the night.

She may be the hardest working girl in showbiz and it showed - with Mauboy revving up the audience with confidence and gusto; and pumping dance moves across the stage, Beyonce-style.

In fact, the comparison to the American queen of pop was hard to avoid. Even Mauboy made it.

"I'm already puffed out, look out Beyonce!" she said, laughing.

"Nah, no one can be like Beyonce!"

While she's admittedly no Beyonce, with that performance, Mauboy proved she was definitely on par.